AQA GCSE Biology Unit 2

this quiz covers pretty much everything for B2... hope you find it useful, and... Good Luck!

  • Created by: A-Gracie
  • Created on: 17-05-11 15:53
what happens in the mitochondria ?
it is where the reactions for respiration take place
1 of 30
how are red blood cells adapted?
no nucleus, haemoglobin, biconcave shape, big surface area
2 of 30
true or false: haemoglobin is a pigment that absorbs oxygen?
True
3 of 30
what are the pores in leaves called?
stomata
4 of 30
how is a sperm cell adapted to it's job?
long tail, streamlined, mitochondria in cell, enzymes to digest egg cell membrane
5 of 30
what is diffusion?
diffusion is the movement of particles form a high concentration to a low concentration
6 of 30
what substance does osmosis happen to ONLY?
water
7 of 30
what is the correct equation for photosynthesis?
carbon dioxide + water --> glucose + oxygen
8 of 30
plants use glucose for respiration, making fruits, making cell walls, making proteins, for storing as starch and for storing in seeds. true or false?
True
9 of 30
what does a lack of nitrates in a plant cause?
stunted growth
10 of 30
what does a lack of magnesium ions in a plant cause?
yellow leaves
11 of 30
monoculture is where only one crop is grown in the same place repeatedly, true or false?
True
12 of 30
each level in a pyramid of biomass shows...
the amount of mass of living material at that stage
13 of 30
what are enzymes?
biological catalysts
14 of 30
what happens to an enzyme if the optimum pH or temperature is exceeded?
it denatures
15 of 30
what enzyme is made in the salivary glands and digested in the mouth?
amylase
16 of 30
what enzyme is made and digested in the stomach?
protease
17 of 30
what three enzymes are made in the pancreas and small intestine and are digested in the small intestine?
protease, lipase + carbohydrase
18 of 30
what is bile used for?
neutralising stomach acid and emulsifying fats
19 of 30
homeostais is the maintenance of external conditions... true or false?
False
20 of 30
what hormone controls the amount of water you lose?
ADH
21 of 30
is the allele for cystic fibrosis recessive or dominant?
recessive
22 of 30
insulin is used for...
regulating your blood sugar levels
23 of 30
is the allele for huntingdon's disease recessive or dominant?
dominant
24 of 30
what 2 other functions does that organ have?
adjustments of ions and water
25 of 30
embryonic stem cells are able to become any cell... true or false?
True
26 of 30
everyone has unique DNA, true or false?
False
27 of 30
mitosis is... ?
cell division in a BODY cell
28 of 30
gametes are diploid... true or false?
False
29 of 30
what do plant cells have that animals cells don't?
chloroplasts, cell wall and permanent vacuole
30 of 30

Other cards in this set

Card 2

Front

how are red blood cells adapted?

Back

no nucleus, haemoglobin, biconcave shape, big surface area

Card 3

Front

true or false: haemoglobin is a pigment that absorbs oxygen?

Back

Preview of the front of card 3

Card 4

Front

what are the pores in leaves called?

Back

Preview of the front of card 4

Card 5

Front

how is a sperm cell adapted to it's job?

Back

Preview of the front of card 5
View more cards

Comments

Bethany

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wow, that must have taken ages! thanks though, it was a good test :)

nush

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really well done, great quiz!

but question 22 is too vague

still 5/5 :)

Sagz

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Q32 and Q35 i think you put the wrong answers for it. Other than that, great quiz

A-Gracie

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thanks, sorry about any mistakes, thought that was the right answers... hope it helped! :)

:) PurpleJaguar (: - Team GR

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Good quiz thanks it was v. helpful :)

Olivia Arnaudy

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number 31 confused me, which organ were you referring to? Very good quiz though!

Lacey Read

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Funny story right, I was doing your quiz and I was like... I haven't done any of this, I did it all last year. My exam is in two days... how can I not know it....

Then I realised this was GCSE, I'm doing A-Level. Good quiz though!

Jonathan Foulston

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Thankyou,helped a lot! Got 72%!

Stephen Lambert

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Smashed ittttt! not challenging enough #100% weak quiz

Stephen Lambert

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lol nr oj great quiz

 

shamz

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What organ do u refer to on question 25

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